Means for conditioning and circulating the air in buildings



March 29, 1932. I 3, MQORE 1,851,014

MEANS FOR CONDITIONING AND CIRCULATING THE AIR IN BUILDINGS Filed March 30, 1929 6 Sheets-Sheet l 6 Sheets-Sheet 2 C. A. MOORE Filed March 30 March 29, 1932.

MEANS FOR CONDITIONING AND CIROULATING THE AIR IN BUILDINGS (/zarles mvore C. A. MOORE March 29, 1932.

MEANS FOR CONDITIONING AND CIRCULATING THE AIR IN BUILDINGS 1929 6 Sheets-Sheet 3 Filed March 30,

glwwhto'a C/iarls 'a. 771,0OV'8 atbo'z wags March 29, 1932. c. A. MOORE MEANS FOR CONDITIONING AND CIRCULATING THE AIR IN BUILDINGS Filed March 30, 1929 6 Sheets-Sheet 4 3mm C/zarZes a. 7720078 Mairch 29, 1932. c. A. MOORE MEANS FOR CONDITIONING AND CIRCULATING THE AIR IN BUILDINGS 1929 6 Sheets-Sheet 5 Filed March 30 March 29, 1932. C' A MOORE I 1,851,014

MEANS FOR CONDITIONING AND CIRCULATING THE AIR IN BUILDINGS Filed March 50, 1929 6 Sheets-Sheet 6 Charles a. 77100112 as, WMK M Patented Mar. 29, 1932 UNITED STAT-ES A. MOORE, OF EDINA, MINNESOTA MEANS FOIQ. CONDITIONING AND CIROULATING THE AIR IN BUILDINGS Application filed March 30, 1929. Serial No. 351,305.

therein are customarily used for the storage;

of different kinds of commodities. The-atmospheric condition suitable in one story for the kind of goods housed therein may be e11- tirely different from the atmospheric condition suitable in another. story for different goods. Through the different atmospheric changes outside of the building, it is desirable to maintain the air within each story or room substantially at a given temperature, at a given percentage of relative humidity, and, at the same time to provide for ventilation. With the desirability of economizing in space and in the equipment for producing the desired results in a storage building, such. as described, the problem heretofore has not been solved satisfactorily. Y

My invention contemplates the use of individual conditioning units for the individua1 stories or rooms of a storage building. It further contemplates curtailing the previous practices of extending numerous mains, pipes, conduits, etc., from top to bottom of a storage building, or vice versa, and limiting such practices merely to the extension, through the different stories, of feed and return mains for conveying temperature affecting media from a source of supply common to the varif ous stories or rooms.

An object of my invention is to provide relatively simple and inexpensive means for effectively conditioning the air within a story or room of a building, the same being adapted to conform with the construction of the building and to occupy a minimum amount of space therein.

More specifically, it is my object to associate with the corridor construction in a story of a building, simple, efiective and relatively inexpensive means convertible for the purpose of heating and refrigerating the storage space at either side of the corridor structure, said means being designed to be confined substantially within the corridor space and adapted to circulate the air in definite circuits in a convective and diffused manner, and to provide for ventilation under heating .and refrigerating, and to provide for the control of the percentage of relative humidity in the circulating air.

A further object of the invention is to provide means of the character above noted including primary temperature affecting elements in combination with a secondary temperature affecting appliance, the latter being adapted to function concurrently with or in dependently of the former, and in either event to provide for the ingress of air to the storyor room from the outside and the egress of air therefrom to the outside.

With the foregoing and other objects in view, which will'appea-r in the following description, the invention resides in the novel combination and arrangement of parts andin the details of construction hereinafter described and claimed.

In the drawings, Fig. 1 is a fragmentary sectional view of a multiple story building of the post and girder type illustrating in one story between two floors a corridor construction supplemented with structural features embodied in my invention and adapted to accommodate the temperature afiectin devices contemplated therein; Fig. 2 is a ragmentary vertical, sectional view showing the PATENT OFFICE? portion of the building construction illustrated in Fig. 1, the section being taken in a vertical plane longitudinally of the corridor structure near the center thereof, and

illustrating certain parts of the equipment embodied in my invention, as is seen in a sectional view taken as described; Fig. 3 is a horizontal sectional view taken as on the line 33 of. Fig. 2; Fig. 4 is a similar view taken as one the line 4-4of Fig. 2; Fig. 5 is a further similar view taken as on the line 55 of Fig. 2; Fig. 6 is a vertical sectional view taken as on the line 6 6 of Fig. 3;

Fig. 7 is avertical sectional view taken trans- I beneath the plane of the lower surfaces of thegirders 13 and the sides 15 being provided with doors 17 giving access to the portions of the room or story at either side of the corridor structure. The corridor structure proper, which extends from one end wall of the building in the direction of the opposite end wall, falls short of, the latter wall, the sides 15, however, being extended to said latter wall and to the ceiling of the story or room to provide a chamber A adjacent the foreshortened terminal of the corridor structure. This chamber A, as will be seen in Figs. 1 and 2, is formed by portions of the end wall 10 and floors 12 of the building, the

extended sides 15 of .the corridor structure and an end 18 formed in said structure. Within the chamber A is a sub-chamber or air header B, the same being formed by means of a partition member 19 and an extension 20 of the top 16 of the corridor structure. This extension or crown panel 20 is inclined slightly downward, as shown, meeting the upper edge of the partition 19 at an elevation somewhat beneath the lower surface of a beam 13 directly above the samei In the chamber A, above the air header B, are two outer throat-like passageways C, and a similar inner or central passageway E, the same being formed by spaced inner partitions 21, 22, standing between the extension 20 and ceiling of the room, in conjunction with the extensions of the sides 15 of the corridor structure. Depending from the ceiling, but stopping short of the top 16 of the corridor structure are two wall portions 23, one extending outward from one partition 21 to the extended portion of one of the sides 15 of the corridor structure and the other extending outward from the other partition 22 to the extended portion of the other side 15 of the corridor structure. ing of said wall portions 23, provides ports F which bring the chamber A into communication with the room proper through said outer passageways C. The inner or central passageway E is entirely unobstructed by anything equivglent to the wall portions 23 and, of course, brings the chamber A into communication with the room proper.

Outer conduits G, extend along the top of the corridor structure, each including an inner panel 24 rising from the top 16 of the corrldor structure, a top panel 25, lying flush though not exclusively,

The foreshortem with the plane of the lower s urfaces of the girders 13- and an outer panel 26 depending from the top panel 25, the bottom of the conduit being formed by the top 16 of the corridor structure. Each outer conduit G has an opening 9 extending along the same and bringing it into communication with the room proper. This opening ,is provided by extending the top panel 25 beyond the plane of the side 15 of the corridor structure, thus leaving a space, forming said opening, between the lower edge of the outer panel 26 and the side 15 of the corridor structure. Each of said outer conduits G connects at one end with one of the passageways C. In this connection, it may be seen in Fig. 1, that the'top panels 25 meet the lower edge of the depending wall portions 23 and that the inner panels 2 1 meet the edges of the partition walls 21, 22. Filler pieces 27 block those portions of the ends of conduits G, which protrude outwardly from the sides 15 of the corridor structure. An inner or central conduit H is formed by the space between the inner panels 24: of the outer conduits G and between the upper surface of the top 16 of the corridor structure and the ceiling of the room. It may be noted here that the inner or central conduit H has openings h extending along the same, which bring said conduit into communication with the room proper at either side of the corridor structure. These openings are provided in the spaces between the top panels 25 of the outer conduits G and ceiling of the room. 4

Formed in the crown panel 20 of the air header in those portions thereof forming the bottoms of the outer passageways C are ports-28, a similar port 29 being formed in that portion of said crown panel 20 forming the bottom of the inner or central passage way E. For the purpose of closing each of said first ports 28, doors or dampers 30 are rovided, the same being hinged at their ower edges to said crown panel 20 and being adapted to be swung upward into vertical positions closing the ends of said outer pas sageways respectively. Similarly, a hinged door or damper 31 is provided for the port 29, the same eing adapted to be swung into vertical position closing the end of the inner or central passageway E. Suitable means of simple character, not shown, are supplied for securing eachof the dampers 30, 31 in each of the positions assumed thereby in use, viz; in one position closing its respective portand in a second position obstructing its respective passa eway at the end thereof where it opens into t e chamber A proper. In the front panel 19 of the air header B are two circular openin sl'ined with short sleeves 32,

each receiving t e fan 33 of an electric blower lower portion of the chamber A and force it into the air header B. The doors or dampers 30, 31 are always alternately arranged, that is to say: When damper 31 in the central passageway E- is adjusted to close the port 29 in the air header B, the dampers 30 are adjusted to clear the ports 28 in their respective outer passageways C and to close the ends of said passageways. Conversely, when the dampers 30 are adjusted to close the ports I 28, the damper 31 is adjusted to clear the port 29, and close the central passageway E. Thus,

with the dampers 30, 31 adjusted, as in the first noted case, air is drawn by the fans 33 from the chamber A and blown into the air header B. Thence, the air is forced through the outer ports 28 into'the outer passageways C and thence into the outer conduits G. And from theseconduits the. air is forced through the openings 9 into the room proper. Under the pressure built up on the one side of the fans and due to the suction created at the other side. air is impelled into the central conduit H, entering the same through the openings it formed by the spaces above the tops of the outer conduits G. Traveling along said central conduit H, the current of air passes into and through the central passageway E to the interior of the chamber A, thus completing the cycle. ,With the doors or dampers 30, 31 adjusted as in the second noted case, the air passes from chamber A to air header B, thence through the central port 29 and passageway E to the connecting central conduit H from which it issues into the room. In returning, the air enters the outer conduits G, then passing through the same and the connecting passageways C again reaches the interior of the chamber A. Within each of the outer conduits G and the central conduit H and extending along the lengths thereof are banks of coiled pipes 36 through which temperature affecting media are circulated. These banks of pipes have individual valved connections with feed and return mains extending through the various stories of the building and which feed the particular medium from and back to a conveniently located source of supply. While I have not illustrated the valved connections and feed and return mains just mentioned, it is obvious that anyone skilled in the arts of plumbing or steam fitting might readily supply the same. 1 In the use of my invention it is contemplated thata refrigerating medium be circulated in the pipes 36 located in the conduits G, H, when a temperature within a room-or story lower than that of the outer atmosphere is desired. And conversely, the invention contemplates the circulation of a heating medium in said pipes, when it is desired to protral. damper 31 is set to close the port 29 and clear the passageway E to the chamber A,

while the outer dampers 30 are set to close the passageways C and clear the ports 28. lVith said dampers thus adjusted, air issues from the. outercondu'its-G after having been refrigerated due to the refrigerating medium in the pipes 36 therein. Settlingto the floor at either side of the corridor structure, the air thence moves along the lower portion of the room toward the relatively warm side walls of the building, where it ascends to the upper portion of the room. Thence, traveling inwardly toward the corridor structure, the air moves along the ceiling and enters the central conduit H through the openin s h. The air entering this central conduit H, being relatively warm, is affected in its return passage through said conduit due to the presence of the refrigerating medium in the pipes 36. Issuing from said conduit H, the air is drawn through passageway E into chamber A. Thence, it is forced by the fans 33 into the air header B, and thence through ports 28 and passageways Cback into the conduits G.

Under heating, the outer doors or dampers 30 are setto close the ports 28 and clear the passageways C to the chamber A, while the inner door or damper 31 is set to close the central passageway E and clear the port 29. With said dampers thus fixed. air issues from conduit H, through openings it, into the room at the ceiling thereof after having been heated due to the heating'medium in pipes 36 in said conduit. Settling along the relatively cold walls of the room, the air descends to the 1 lower portion of the room, and travels inwardly toward the corridor structure. Thence rising at the side walls 15 of said structure, the air enters. through openings 9, into the outer conduit Gr, where, in its then relatively cool state, it is affected due to the heating medium in pipes 36 located in said conduits G. Drawn along these conduits G, the air passes through the outer passageways G into the chamber A, whence it is forced by the fans 33 through the air header B, port 29 and passageway E to and along the central duct H Within the chamber A is an appliance J including two concentric conduits 7c and k, the inner conduit 70' consisting of an upright pipe open at its upper end near the ceiling and connected at its lower end with a horizontal branch pipe 37 one extremity of which extends through the end wall 10 and opens into the outer atmosphere, the other end of which is normally closed by means of a cap 38. The outer conduit 7: is made up of a spirally coiled pipe 39, a cap 40 being provided at the upper end of the pipe structure.

Issuing-from this cap is a branch pipe 41,'

lso

into the outer atmosphere. The coiled pipe 39 is connected at its ends with valved leads (notshown), whereby a refrigerating medium may be introduced into said pipe at the bottomvof the coil and conducted away from the top thereof, and, whereby, a heating medium may be introduced into said pipe at the top of the coil and conducted away from the bottom thereof.

Within the air header B are three upright pipes 43, 44 and '45, the lower ends of which terminate near the floor. Each of these three pipes extends throigh the crown panel 20 to an elevation near the ceiling, that portion of pipe 43 above said panel being situated within one of the outer passageways C, the similar portion of pipe 45 being situated within the other outer passageway C and the similar portion of pipe 44 being situated within the central passageway E. Leading from pipe 43, through the partition 19, is a pipe 46 connecting with the upper'branch pipe 42 of the appliance J and leading from pipe 45 is a similar pipe 47 connecting with the lower branch pipe 37 of said appliance. Connecting these two pipes 46 and 47 is a cross pipe 48, which communicates through a pipe 49 with the central pipe 44 in the air header B. The pipes 43, 44 and 45 are supplied at their upper and lower ends with dampers 50, 51 and 52, 53, and 54, 55, respectively, while the pipes 46 and 47 are supplied with dampers 56 and 57, respectively, placed in said pipes between the cross pipe 48 and the appliance. In branch pipe 42, between the junction of pipe 46 therewith and the appliance proper is a damper 58 and, likewise, in pipe 37, between the junction of pipe 47 therewith and the appliance proper is a damper 59. Also in branch pipe 41 is a damper 60.

The pipes 36 in conduits G and H and the coiled pipe 39 in the appliance J may be used concurrently for the circulation therethrough of a refrigerating or a heating medium or may be employed, one without the other, or not used at all, the condition desired determining such choice. For example, under refrigeration, a refrigerating medium would be circulated through the coiled pipe 39 alone, or'through the pipes 36 alone, or

"through both according to the capacity of said parts to meet the particular demand.

Assuming that a refrigerating medium was being circulated through either or both of the pipes 36, 39 in order to refrigerate the associated room or story of the building, the general circulation of air in the structure would occur as hereinbefore pointed out. Assume, however. that the user desired to ventilate by admitting fresh air and at the same time exhausting some of the used air. In this event, the user would open damper 58in pipe .42, close damper 56 in pipe 46, and damper 59 in pipe 37 and open damper 57 in pipe 47. Thus, fresh air would be drawn into chamber A through pipe 42 and the appliance J, while air would be expelled through pipes 43 and 45 or either of them and/or pipes 44, 49, 48,.all connecting with pipe 47, which in turn connects with pipe 37 leading to the outer air.

Suppose, now, that a heating-medium was being circulated through either or both of used air would be exhausted through pipes 43 and 45 or either of them and/or pipes 44, 49, 48 connecting, in order, with pipe 46,

which in turn connects with pipe 42 leading to the outer air.

Attention is here invited to the fact that the movement of the incoming and outgoing air under refrigeration and under heating is largely, if not entirely, a gravitating move ment, whereby the force of the fans, in ventilating, is augmented by gravity rather than being opposed thereby.

If the relative percentage of humidity is not suitable within the structure, it may be decreased by opening, in pipes 43, 44 and 45,

the upper dampers only of all or either of them, while such percentages may be increased by opening in said pipes 43, 44 and 45, the lower dampers only of all or either of them. a

' The chief advantages of my invention reside in economy of construction and operation and the flexibility and ease of control in meeting the many and widely varied operating conditions.

Changes in specific form of my invention, as herein disclosed, may be made within the scope of what is claimed without departing from the spirit of my invention.

Having described my invention, what I claim as new and desire to protect by Letters Patent is:

1. In combination, a building construction providingaroom anda central corridor structure therein having a ceiling disposed be neath the ceiling of the roo and, further, providing a chamber at one nd of the corri' dor structure, outer conduits extending along the top of the corridor structure, each formed with an opening along the length thereof at one side of said structure, said conduits being spaced apart from each other and from the ceiling of the room, an inner conduit, between said outer conduits, in communication along the same with the interior of the room at both sides of the corridor structure through mosphere to the air in transit to and from the room proper and for removing to the outer-atmosphere a portion of such air in transit.

2. In combination. a building construction providing a room and a central corridor structure therein having a ceiling disposed beneath the ceiling of the room, and, further, providing a chamber at one end of the corri dor structure, outer conduits extending along the top of the corridor structure, each formed with an opening along the length thereof at one side of said structure, said conduits being spaced apart from each other and from the ceiling of the room, an inner conduit, between said outer conduits, in communication along the same with the interior of the room at both sides of the corridor structure through the spaces between the outer conduits and the ceiling of the room, the outer conduits being in communication with and adapted to 'conduct the air from the upper portion of the room proper at either side of the corridor structure to said chamber, a fan for drawing air from the chamber and blowing it into the inner conduit and from the same into the room at either side of the corridor structure,-

and means for introducing air from the outer atmosphere to the air in transit to and from the room proper and for removing to the outer atmosphere a portion of such air in transit.

3. In combination, a building construction providing a room anda central corridor structure therein having a ceiling disposed bethe spaces between the outerconduits and the ceiling of the-room, the outer conduits being in communication with andadapted to conduct the air from the upperportion of the room proper at either side of the corridor structure to said chamber, a fan for drawing air from the chamber and blowing it into the inner conduit and from the same into the room at either side of the corridor structure, and means for affecting the temperature of the air in transit to and from the room proper.

4. In combination, a building construction providing a room and a central corridor structure therein having a ceiling disposed beneath the ceiling of the room and,,further, providing a chamber at one end of the corridor structure, outer conduits. extending along the top of the corridor structure, each formed with an opening along the length thereof at one side of said structure, said conduits being spaced apart from each other and from the ceiling of the room, an inner conduit, between said outer conduits, in communication along the same with the interior of the room at both sides of the corridor structure through the spaces between the outer conduits andthe ceiling of the room, the inner conduit being in communication with and adapted to conduct the air from the upper portion of the room proper at either side of the corridor structure to said chamber, afan for drawing air from the chamber and blowing it into the outer conduits and from the same into the room at either side of the corridor structure, means for afi'ecting the temperature of the air in transit to and from the room proper, and means for introducing air from the outer atmosphere to the air in transit to and from the room proper and for removing to the outer atmosphere a portion of such air in transit. I l

5. In combination, a building construction providing a room and a central corridor structure therein having a ceiling disposed beneath the ceiling of the room and, further, providing a chamber at one end of the corridor structure, outer conduits extending along the top of the corridor structure, each formed with an opening along the lengththereof at one side of said structure, said conduits being spaced apart from each other and from the ceiling oftheroom, an inner conduit, between said outer conduits, in communication along the same with theinterior of the room at both sides of the corridor structure through the spaces between the outer conduits and the ceiling of the room, the inner conduit being in communication with and adapted torconduct the air from the upper portion of the room proper at either side of the corridor structure to said chamber, a fan for drawing air from the chamber and blowing it into the outer conduits and from the same into the room at either side of the corridor structure, and means for introducing air from the outer atmosphere to the air in transit to and from the room proper and for removing to the outer atmosphere a portion of such air in transit.

6. In combination, a building construction providing a room and a central corridor struc ture therein having a ceiling disposed beneath the ceiling of the room and, further,

providing a chamber at one end of the corridor structure, outer conduits extending along the top of the corridor structunpeach formed with an opening along the length thereof at one side of said structure, said conduits being spaced apart from each other and from the ceiling of the room, an inner conduit, between said outer conduits, in communication along the same with the interior of the room at both sides of the corridor structure through the spaces between the outer conduits and the ceiling of the room, the inner conduit being in communication with and adapted to conduct the air from the upper portion of the room proper at either side of the corridor structure to said chamber, a fan for drawing air from the chamber and blowing it into the outer conduits and from the same into the room at either sideof the corridor structure, and means for affecting the temperature of the air in transit to and from the room proper. v

7. In combination, a'building construction providing a room and a central corridor structure therein havingv a ceiling disposed beneath the ceiling of the room and,further providing a chamber at one end of the corridor structure and an air header within said chamber, outer air conduits extending along the top of the corridor structure, each formed with an opening along the length thereof at one side of said structure, said conduits being spaced apart from each other and from the ceiling of the room. an inner conduit, be- 1 tween said outer conduits, in communication along the same with the room at both sides of the corridor structure through the spaces between the outer conduits and the ceiling of the room, said conduits at the corresponding ends thereof being each in communication with said chamber and with said air header. a fan for drawing air from the chamber and blowing it into said header, means for cutting off communication between the outer conduits and the chamber or the header, and for cutting ofi' communication between the inner con.-

'duit and the chamber or header, whereby the flow of air in said conduits may be reversed, and means within the chamber providing for the ingress of air thereto from the outer atmosphere and for the egress of air therefrom to the outer atmosphere. a

8. In combination, a building construction providing a room and a central corridor structure therein having a ceiling disposed beneath the ceiling of the room and, further. providing a chamber at one end of the corridor structure and an air header within said chamber, outer air conduits extending along the top of the corridor structure. each formed with an opening along the length thereof at one side of said structure, said con.- duits being spaced apart from each other and from the ceiling of the room, an inner conduit, between said outer conduits in communication along the same with the room at both sides of the corridor structure through the spaces between the outer conduits and the ceiling of the room, said conduits at the corresponding ends thereof being each in communication with said chamber and with said air-header, a fan for drawing air from the chamber and blowing it into said header, means for cutting off communication between the outer conduits and the chamber or the header, and for cutting off communication between the inner conduit and the chamber or header, whereby the flow of air in said conduits may be reversed, and temperature affecting means in said chamber.

9. In combination, a building construction providing a room and a central corridor structure therein having a ceiling disposed beneath the ceiling of the room and, further,-

providing a chamber at the end of the corridor structure and an air header within said chamber, outer air conduits extending along a fan for drawing air from the chamber and blowing it into said header, means for cutting off communication between the outer conduits and the chamber or the header, and for cutting ofi' communication between the inner conduit and the chamber or header, whereby the flow of air in said conduits may be reversed, and temperature affecting means in said conduits.

10. In combination, a building construction providing aroom and a central corridor structure therein having a ceiling disposed beneath the ceilingof the room, and further providinga chamber at the end of the corridor structure and an air header within said chamber, outer air conduits extending along the top of the corridor structure, each formed with an opening along the length thereof at one side of said structure, said conduits being spaced apart from each other and from the ceiling of the room, an inner conduit, between said outer conduits, in communication along the same with the room at both sides of the corridor structure through the spaces between the outer conduits and the ceiling of the room, said conduits at the corresponding ends thereof being in communication with said chamber and with said air header, a fan for drawing air from the chamber and blowing it into said header, means for cutting-off communication between the outer conduits and the chamber or the header, and for cutting off communication between the inner conduit and the chamber or header, whereby the flow of air in said conduits may be reversed.

11. In combination, a building -construction providing a room and a central corridor structure therein having a ceiling disposed beneath the ceiling of the room, conduits extending along the top of the corridor structure, each of said conduits consisting of an inner wall spaced horizontally from the cor responding wall of the other conduit, a top wall spaced from the ceiling of the room,

.an outer wall depending from said top wall,

the bottom of the conduit being formed by the ceiling portion of the corridor structure, the lower edge of the outer wall beingclear of the corridor structure to provide an opening in the conduit extending along the same, the inner walls of said conduits together with the ceiling portion of the corridor structure providing a third conduit, the same opening therealong into the room at either side of the corridor structure through the spaces between said top walls of the other conduits and the ceiling of the room, and means communicating with said conduits at one end thereof for concurrently forcing air into the outer conduits and drawing air from the inner conduit and for concurrently forcing air into said inner conduit and drawing air from said outer conduits. a

12. In combination, a building construction providing a storage room, two air con; duit-s extending along the room and each opening along the length thereof into the nterior of the room, pipes within said condu ts extending along the length thereof for a C11- culating temperature affecting medium, a structure forming a chamber, one conduit being adapted to conduct air to the chamber and the other to conduct air therefrom, a fan' for drawing air from the chamber and blowing it into said latter conduit, a valved ingress duct leading from the outer atmosphere into said chamber and a valved egress duct leading to the outer atmosphere from the duct receiving air from said fan.

13. In combination, a building-construction providing a storage room, two air conduits extending along the room and each opening along the length thereof into the interior of the room, pipes within said conduits extending along the length thereof for circulating temperature affecting media therein,

' a structure forming two intercommunicating chambers, a fan for drawing air from one chamber and blowing it mto the other chamber, each chamber having a wall with two.

ports therein, the ports in each wall bringing their respective chamber into communication with said conduits respectively, two closures, each closure being common to one pair of said ports. and adapted. to close either thereof,

whereby one conduit may be brought into communication with one only of said chambers and the other conduit brought into commun-ciation with the other one of said chambers or vice versa.

l4. In combination, a building construction providing a storage room, air conditioning apparatus therein including two air conduits extending along the upper portion of the room and opening along the lengths thereof at different elevations into the interior of the room, pipes extending along said conduits within the same for conducting temperature affecting media therethrough, a fan, air conveying means associated with said fan and conduits, said fan being adapted to draw air from one conduit and blow it back into the other conduit, and means for causing the flow of air impelled by said fan in said conduits to be reversed therein.

15. In combination, a structure providing a room, an air conditioning unit within the room including two air conduits extending along the ceiling thereof, each conduit opening along its length into the interior of the room, pipes in said conduits extending along the same for a circulating temperature affecting medium, and means for drawing the air from. one conduit and blowing it back into the other conduit.

16. In combination, a building construction providing a room, means forming a chamber, conduits extending along the room and communicating along their lengths with the interior of the room, one conduit being adapted to feed air to the room from said chamber. and the other to return air from the room to the chamber, means for circulating the air in said conduits through said chamber, refrigerating means within one of the conduits, independent refrigerating means within the chamber, and means for introducing fresh air into the chamber from the outer atmosphere. 17. In combination, a building construction providing a storage room, two air conduits extending along the ceiling of the room, each conduit having an opening therein along the length thereof, pipes within said conduits along the length thereof for conducting temperature afi'ecting media therethrough, a structure forming two intercommunicating chambers, a fan for drawing air from one chamber and blowing it into the other chamber, each chamber being in communication with each conduit, and means for cutting off communication between each conduit and said chambers. selectively, to provide for reversing in said conduits the flow of air therein impelled by said fan. i, 18. In combination, a building construction providing a room, two conduits extending along the room and opening along the lengths thereof into the interior of the room at different elevations, a structure forming a sucsame communicating one with the other, a fan for drawing air from the former and blowing it into the latter, means for connecting said conduits with said chambers alternately, and

means within the suction chamber for affecting the temperature of the air therein.

19. In combination, a building construction providing a room, two conduits extending along the room and opening along the lengths thereof into the interior of the room at different elevations, a structure forming a suction chamber and a pressure chamber, the

same communicating one with the other, a

fan for drawing'air from the former and blowing it into the latter, means for connecting said conduits with said chambers alternately, means within the suction chamber for affecting the temperature of the air therein, a valved ingress duct bringing the suction chamber into communication with the outer atmosphere, and a valved egress duct bringing the pressure chamber into communication with the outer air.

20. In combination, a building construction providing a room, two conduits extending along the room and opening along the lengths thereof into the interior of theroom at different elevations, a structure forming a suction chamber and a pressure chamber, the same communicating one with the other, a fan for drawing air from the former and blowing it into the latter, means for connecting said conduits with said chambers alternately, and means within the conduits ex tending along the lengths thereof for atfecting the temperature of the air therein.

21. In combination, a'structure providing a room, a first conduit and a second conduit, both communicating with the room, said first conduit extending along the room and commuicating along the length thereof with the interior of said room, said first conduit being adapted to introduce air into theroom and the second conduit to receive air therefrom, means for impelling air along said conduits,

and temperature aifectin g means within said first conduit extending along .the length thereof.

22. In combination, a structure providing a room, a pair of conduits, one thereof extending along the upper portion of the room and communicating along its length with the interior of said room and adapted to introduce air into the room, the other conduit being in communication with the room at a different elevation and adapted to receive air from the interior'of the room, temperature affecting means within said first conduit extending along the length thereof, and means for impelling air through said conduits.

In testimony whereof I have aflixed my signature to this specification. i

CHARLES A; MOORE. 

